PLEASE HELP.. same config but not working! from PA 3050 to PA 3220

[rmfalconer]

So both old and new firewall are set to True?

I think you said you're using the copper interfaces on the PA? Do they connect directly to the A10? SFPs on another device shouldn't matter for the connection to the PA.

[scottoliver]

If you havent figured this inbox me and I can help you. 

[SamerKiwan]

Yes on both devices its True. 

Palo Alto Copper interfaces are connecting to the A10 device (using SFPs Fiber to Copper).

[SamerKiwan]

Yes, please i would appreciate if you can help with this.. but i didn't know how to inbox your from here -_-

[SamerKiwan]

Dears,

This is to inform that this issue has been finally solved ! there was a static ARP on the core firewall interface. We put dynamic and ll worked properly. 

Thank you all.